Omar please help me with this question

[From: ] [author: ] [Date: 12-02-11] [Hit: ]

http://session.masteringphysics.com/problemAsset/1006820/21/1006820_01.jpg

The answer is wrong mastering physics is wrong, the real answer is 1/t^2 * Eo*10^245/230

SORRY , I'M NOT OMAR !

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